The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 06, 2018
Filed:
Nov. 26, 2014
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Nicholas Wilson, Middlesex, GB;
James Alastair Southern, Reading, GB;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A synchronization method in a computer system with multiple cores, wherein a group of threads executes in parallel on a plurality of cores, the group of threads being synchronized using barrier synchronization in which each thread in the group waits for all the others at a barrier before progressing; the group of threads executes until a first thread reaches the barrier; the first thread enters a polling state, repeatedly checking for a release condition indicating the end of the barrier; subsequent threads to reach the barrier are moved to the core on which the first thread is executing; and other cores are powered down as the number of moved threads increases; and wherein when the first thread detects the release condition, the powered down cores are powered up and are available for use by the threads.